Method for determining the position of an elevator car and a...

Details Method for determining the position of an elevator car and a... Method for determining the position of an elevator car and a...

B - Operations, Transporting

66

B

364/35

B66B 3/02 (2006.01) B66B 1/34 (2006.01)

Patent

CA 1296114

ABSTRACT OF THE DISCLOSURE The invention relates to a method and means for determining the position of an elevator car on the principle of floor selection by means of a pulse train, whereby the position of the elevator car is determined on the basis of a pulse count indicating the elevator's speed. To achieve a more reliable pulse count based floor selection system which is suited for use with any type of elevator, the pulses required for calculating the elevator position for floor selection are obtained from an acceleration sensor placed on the elevator car, the output signal of which is integrated so as to obtain a voltage representing the speed of the elevator car, said voltage being converted into a pulse train whose frequency is dependent on the speed of movement of the elevator car.

567160

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